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PHYSICS

Physics
In hydro power station, the motion produced in turbines is due to

Production of steam
Flow of water
Burning of diesel
Burning of coal

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Physics
The SI unit for measuring work and energy is

Ohm
Watt
Farad
Joule

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Physics
In a rechargeable cell what kind of energy is stored within the cell?

Chemical energy
Kinetic energy
Potential energy
Electrical energy

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Physics
A bullet is fired from a rifle which recoils after firing. The ratio of kinetic energy of the rifle to that of the bullet is

One
Zero
Less than one
More than one

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Physics
Which of these is true of all simple machines?

Work input > work output
Both A & B
None of these
These make work easier

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